void ParticleSystem::add( ci::Vec2f pos, ci::Vec2f velocity, ci::ColorA color, ci::Rectf srcCoords, ci::Rectf destRect ) {
Particle p = { verts.size(), velocity, pos, pos };
particles.push_back( p );
// Vertices
verts.push_back( destRect.getX1() ); verts.push_back( destRect.getY2() ); verts.push_back(0);
verts.push_back( destRect.getX2() ); verts.push_back( destRect.getY2() ); verts.push_back(0);
verts.push_back( destRect.getX2() ); verts.push_back( destRect.getY1() ); verts.push_back(0);
verts.push_back( destRect.getX1() ); verts.push_back( destRect.getY2() ); verts.push_back(0);
verts.push_back( destRect.getX2() ); verts.push_back( destRect.getY1() ); verts.push_back(0);
verts.push_back( destRect.getX1() ); verts.push_back( destRect.getY1() ); verts.push_back(0);
// Texture coords
color.a = Constants::Particles::ALPHA;
texCoords.push_back( srcCoords.getX1() ); texCoords.push_back( srcCoords.getY2() );
texCoords.push_back( srcCoords.getX2() ); texCoords.push_back( srcCoords.getY2() );
texCoords.push_back( srcCoords.getX2() ); texCoords.push_back( srcCoords.getY1() );
texCoords.push_back( srcCoords.getX1() ); texCoords.push_back( srcCoords.getY2() );
texCoords.push_back( srcCoords.getX2() ); texCoords.push_back( srcCoords.getY1() );
texCoords.push_back( srcCoords.getX1() ); texCoords.push_back( srcCoords.getY1() );
// Colors
// ci::ColorA color = ci::ColorA(ci::CM_HSV, _debugColor, 1.0, 1.0, 1.0);
colors.push_back( color ); colors.push_back( color ); colors.push_back( color );
colors.push_back( color ); colors.push_back( color ); colors.push_back( color );
colors.push_back( color ); colors.push_back( color ); colors.push_back( color );
colors.push_back( color ); colors.push_back( color ); colors.push_back( color );
colors.push_back( color ); colors.push_back( color ); colors.push_back( color );
colors.push_back( color ); colors.push_back( color ); colors.push_back( color );
}
void Draw(const Movable& DrawData, const Texture& Tex) // @Remove second param
{
using namespace ci;
gl::pushModelView();
gl::translate(DrawData.GetCenterPos());
// gl::drawStrokedRect( ToRect(DrawData.GetAABB()) );
gl::rotate(DrawData.GetAngle());
gl::scale(DrawData.GetScale().x, DrawData.GetScale().y);
gl::translate(-Tex.getSize() / 2.f);
glEnableClientState(GL_VERTEX_ARRAY);
GLfloat verts[8];
glVertexPointer(2, GL_FLOAT, 0, verts);
glEnableClientState(GL_TEXTURE_COORD_ARRAY);
GLfloat texCoords[8];
glTexCoordPointer(2, GL_FLOAT, 0, texCoords);
const ci::Rectf destRect = Tex.getCleanBounds();
verts[0 * 2 + 0] = destRect.getX2();
verts[0 * 2 + 1] = destRect.getY1();
verts[1 * 2 + 0] = destRect.getX1();
verts[1 * 2 + 1] = destRect.getY1();
verts[2 * 2 + 0] = destRect.getX2();
verts[2 * 2 + 1] = destRect.getY2();
verts[3 * 2 + 0] = destRect.getX1();
verts[3 * 2 + 1] = destRect.getY2();
const ci::Rectf srcCoords = Tex.getAreaTexCoords(Tex.getCleanBounds());
texCoords[0 * 2 + 0] = srcCoords.getX2();
texCoords[0 * 2 + 1] = srcCoords.getY1();
texCoords[1 * 2 + 0] = srcCoords.getX1();
texCoords[1 * 2 + 1] = srcCoords.getY1();
texCoords[2 * 2 + 0] = srcCoords.getX2();
texCoords[2 * 2 + 1] = srcCoords.getY2();
texCoords[3 * 2 + 0] = srcCoords.getX1();
texCoords[3 * 2 + 1] = srcCoords.getY2();
glDrawArrays(GL_TRIANGLE_STRIP, 0, 4);
gl::popModelView();
}
